package com.shenfa.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import com.shenfa.dao.LetterDao;
import com.shenfa.bean.BackLetter;
/**
 * 
 * 退信管理
 * @author 李东生
 *
 */
public class LetterService {

	@Autowired
	private LetterDao letterDao;
	public void addBackLetter(BackLetter letter){
		letterDao.addBackLetter(letter);
	}
	public List<BackLetter> queryBackLetter(BackLetter letter){
		return letterDao.queryBackLetter(letter);
	}
	
}
